David d



(No Model.)

D. D. KUHLMAN.

AUTOMATIC GRAIN WEIGHING APPARATUS.

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Patented Nov. 20, 1883.

UNITED STATES PATENT QEETCE.

DAVID D. KUHLMAN, OF NEXV YORK, N. Y.

AUTOMATIC GRAIN-WEIGHING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 283,820, dated November 20, 1883,

Application filed October 4, 1883.

(No model) To all whom, it may concern.-

Be it known that 1, DAVID D. KUHLMAN, a citizen of the United States, residing at New York, N. Y., have invented new and useful Improvements in Automatic Grain-XVeighing Apparatus, of which the following is a specification.

This invention relates more particularly to the automatic grain-weighing apparatus for which I made application for Letters Patent on the 8th day of September, 1883, Serial No. 105,960; and the object of my present invention is to provide novel mechanism whereby the flow of grain to the grain-bucket is automatically checked or stopped when the grainbucket discharges its contents.

To this end my invention consists in providing the lower end of the feed-pipe or hopperthroatway with a pivoted or movable spout, and connecting the latter with a movable secondary hopper located under the grain-bucket in such manner that when the bucket discharges the grain is received by the secondary hopper and the latter moved downward, the movable spout being thereby adjusted over a stationary cut-off plate at one side of the passage leading to the grain-bucket, so that the lower end of the spout is closed to check the flow of grain to the grain-bucket until the escape of the grain from the secondary hopper is sufficient to permit the latter to rise under the influence of a weight or its equivalent, when the movable spout will be adjusted to permit the flow of grain to the grain-receiving bucket.

The invention is clearly illustrated in the accompanying drawing, in which the figure is a vertical sectional view of a grain-weighing machine with my present invention applied thereto.

The invention is designed for use in connection with any grain weighing or measuring machine, but it is here shown as arranged in connection with the apparatus forming the subject-matter of my application, hereinbefore alluded to, in which a grain-bucket, No. 1, is divided into two compartments, 22, bya pendent swinging partition, 3, and a stationary portion, 4, said bucket being suspended from a scale-beam, and having a movable or pivoted chute, 5, for delivering the grain first to one side and then to the other of the stationary partition. I do not consider it essential to more fully describe or illustrate these features and their mode of operation, as theyare identical with the apparatus shown, described, and claimed in my before-mentioned application. I will therefore proceed to specifically describe my present invention; and on reference to the drawing it will be seen that the feed-pipe or feed-hopper throatway 6 is provided at its lower end with a hinged section or spout, 7, connected by a bar, 8, with one arm of a bellcrank lever, 9, which is pivoted at its angle 10 to a bracket secured to an upright, 11, forming part of the frame-work of the apparatus. The other arm of the bell-crank lever is attached to vertically-arranged rod 12, bent outward, as at 13, and connected at its lower end to an arm, 14, which carries a weight at its outer end, and is pivoted to one of the standards, 15, of the frame-work. The inner end of this arm is preferably forked, so as to embrace a secondary receiving-hopper, 16, the extremities of the fork being pivoted thereto. The passage-way 17, which leads from the feedpipe 6 to the grain-bucket, is provided at its upper end, at one side, with a curved or inclined stationary cut-off plate, 18, and the arrangement is such that when the requisite amount of grain is supplied to the grain-bucket to overbalance the scale-beam and cause the bucket to descend and discharge its contents (as in my application alluded to) such discharged grain will be received in the secondary hopper 16, the weight of the grain depressing the said hopper by overbalancing the weight 011 the arm 14, thus causing the rod 12 to move upward and rock the bell-crank lever 9 on its pivot, and by the connecting-bar 8 move or swing the hinged section or spout 7, so that its lower open end will be adjusted over the stationary cut-off plate 18 and check or stop the flow of grain to the grain-bucket until the latter has risen to its normal position under the influence of the scale-beam, by which time sufficient grain will have escapedfrom thesecondary hopper to permit the weight on the arm 14 to raise the secondary hopper, such action drawing the rod 12 downward and adj usting the hinged section or spout 7 back into line with the passage-way l7, and permitting the grain to again flow into the grain-bucket. The back movement of the hinged section or -2 eeaeeo spout is limited by a projection, 19, coming against a stop, 20, so that the section or spout will be brought and held accurately in line with the passage-way until the movements described are repeated. The weight on the arm 14 is suflicient to raise the secondary hopper as soon as a part or the whole of the' grain received therein has escaped.

I do not confine myself to the use of any particular kind of weighing-bucket, nor to the precise mechanism shown and described for connecting the hinged section or spout with the secondary hopper, as other means can be employed for accomplishing the same obj ect but the devices shown are simple and reliable in operation, and arenot likely to become dis arranged or inoperative.

The invention is adapted for use in feeding grain to burrs, the latter having their hopper arranged directly below the secondary hopper 16 in such manner that when the latter descends its bottom rests upon the burr-hopper.

The escape from the latter will, of course, control the escape from the secondary hopper, and thereby the apparatus is adapted to feed to any capacity, whether the burrs grind two bushels or more per hour.

Having thus described my invention, what I claim is 1. The combination, with a grain-bucket, of a feed-pipe or hopper-throatway, a swinging section pivoted at the lower end thereof, a sta tionary cut-off plate arranged at one side of the passage-way which conducts the grain from the feed-pipe to the bucket, a rising and falling secondary hopper or grain-receiver arranged below the grainbucket, and means for connecting the secondary hopper with the pivoted swinging section under the feed-pipe to swing the lower end of the said section over the stationary cut-off plate by the falling movement of the secondary hopper, substantially as described.

2. The combination, with the grain-bucket, of a stationary curved cutoff plate arranged at one side of the passage-way leading to the bucket, a feed-pipe or hopper-throatway, a

section pivoted at the lower end of the latter and adapted to swing to cause its lower end to pass over the stationary cut-off plate, and mechanism actuated by the weight of the grain discharged from the bucket to swing the movable section over the cut-oii plate, substantially as described.

3. The combination, with a grain-bucket, of a passage-way, 17, above the same, a stationary cut-oft plate, 18, at one side of the upper end of the passage-way, a feed-pipe or 110pper-throatway, 6, a swinging section, 7, pivoted at the lower end of the latter, and means for swinging the said pivoted section to move its lower end over the stationary cut-off plate, substantially as described.

4. The combination, with a grain-bucket, of a stationary cut-off plate, 18, a feedpipe or hopper throatway, 6, a section, 7, pivoted to swing at the lower end of the feed-pipe, a rising and falling secondary hopper below the grain-bucket, and the bar 8, bell-crank lever 9, upright rod 12, and pivoted arm 14, for connecting the swinging section with the secondary hopper to swing said section over the stationary cut-off plate by the falling movement of said hopper, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

DAVID D. KUHLMAN.

Witnesses:

Jllirns L. Nonnis, J. A. Rtrnnnronn. 

